Add media server cards, and stop re-counting whole libraries every minute
The counts need the entire library downloaded to compute six numbers — 16.0 MB from Radarr and 5.5 MB from Sonarr, measured — and they were on the same one-minute clock as queue depth and health, which pulled ~30 GB a day out of the arrs to re-count records that had not changed. They now cache for fifteen minutes against how often the numbers actually move: 7.6s to 3.0s per refresh. Emby and Jellyfin get a card each: version, CPU, memory, uptime, streams, users and transcodes, with update/restart flags. Two halves of one question — a server answering happily at 145% CPU is a different situation from one at 8%, and neither the app nor the container says so alone.
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Gmer4Lfe
@@ -258,6 +258,115 @@ function vv_media_sessions(): array {
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];
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}
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// ── What each media server is actually doing ──────────────────────────────────────────────────
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// Two halves that only mean something together. The application knows its version, whether an
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// update is waiting and who is watching; the container knows what that is costing in CPU, memory
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// and how long it has been up. Neither half can answer "is Emby healthy" on its own — a server
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// answering happily at 130% CPU is a different situation from one answering happily at 5%.
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//
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// Cost is one scoped `docker stats` (~2s for two containers, not the ~8s an unscoped call takes),
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// one inspect, and one HTTP call per server. That rides the arrs payload's cache rather than being
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// paid per page load — the background writer refreshes it every minute, so the CPU figure is at
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// most a minute stale, which is honest for a card rather than a live graph. Monitor is where live
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// belongs.
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function vv_media_container_stats(array $names): array {
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$names = array_values(array_filter($names));
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if (!$names) return [];
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$out = [];
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$args = implode(' ', array_map('escapeshellarg', $names));
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$fmt = '{{.Name}}|{{.CPUPerc}}|{{.MemUsage}}|{{.MemPerc}}';
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$raw = shell_exec("docker stats --no-stream --format " . escapeshellarg($fmt) . " $args 2>/dev/null") ?: '';
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foreach (explode("\n", trim($raw)) as $line) {
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$p = explode('|', $line);
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if (count($p) < 4) continue;
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[$mUsed, $mLimit] = array_pad(array_map('trim', explode('/', $p[2])), 2, '');
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$out[$p[0]] = [
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'cpu_pct' => (float)rtrim($p[1], '%'),
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'mem_used' => $mUsed,
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'mem_limit' => $mLimit,
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'mem_pct' => (float)rtrim($p[3], '%'),
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];
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}
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// Uptime separately: docker stats does not carry it, and StartedAt is the only thing that
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// distinguishes "up for a week" from "restarted four minutes ago", which is the first thing
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// worth knowing about a server that is behaving oddly.
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$insp = shell_exec("docker inspect -f '{{.Name}}|{{.State.StartedAt}}|{{.State.Running}}' $args 2>/dev/null") ?: '';
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foreach (explode("\n", trim($insp)) as $line) {
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$p = explode('|', $line);
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if (count($p) < 3) continue;
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$n = ltrim(trim($p[0]), '/');
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$started = strtotime(trim($p[1])) ?: 0;
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$out[$n]['uptime'] = $started ? max(0, time() - $started) : null;
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$out[$n]['running'] = trim($p[2]) === 'true';
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}
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return $out;
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}
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// Emby and Jellyfin both answer /System/Info with the same field names — they share an ancestor —
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// so one shape covers both. Plex does not, and is deliberately left reporting only what the
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// session layer already knows about it rather than guessing at an equivalent.
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function vv_media_server_info(array $srv): array {
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$hdr = $srv['type'] === 'jellyfin'
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? "X-Emby-Token: {$srv['key']}\r\n"
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: "X-Emby-Token: {$srv['key']}\r\n";
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$ctx = stream_context_create(['http' => [
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'timeout' => 4, 'header' => $hdr . "Accept: application/json\r\n", 'ignore_errors' => true,
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]]);
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$raw = @file_get_contents(rtrim($srv['url'], '/') . '/System/Info', false, $ctx);
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$d = $raw ? json_decode($raw, true) : null;
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if (!is_array($d)) return ['online' => false];
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return [
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'online' => true,
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'version' => $d['Version'] ?? null,
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'server_name' => $d['ServerName'] ?? null,
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'os' => $d['OperatingSystemDisplayName'] ?? ($d['OperatingSystem'] ?? null),
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'update_available' => !empty($d['HasUpdateAvailable']),
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'pending_restart' => !empty($d['HasPendingRestart']),
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'maintenance' => !empty($d['IsInMaintenanceMode']),
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];
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}
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function vv_media_server_stats(): array {
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$servers = vv_discover_media_servers();
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if (!$servers) return [];
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$vars = vv_conf_vars();
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$myId = strtoupper(vv_detect_host());
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// Container name comes from conf, not from the server's own name: HOST1_EMBY_CONTAINER is what
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// docker answers to, and the two are routinely different — this one calls itself
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// "Emby-Gmer4Lfe" and runs in a container called "Emby".
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$ctrOf = [];
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foreach ($servers as $s) {
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$ctrOf[$s['name']] = $vars[$myId . '_' . strtoupper($s['type']) . '_CONTAINER'] ?? '';
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}
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$stats = vv_media_container_stats(array_values($ctrOf));
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// One session fetch for everything, then split by server — asking each server separately would
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// duplicate work the session layer already does for the whole estate.
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$sess = vv_media_sessions()['sessions'] ?? [];
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$out = [];
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foreach ($servers as $s) {
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$mine = array_values(array_filter($sess, fn($x) => ($x['server'] ?? '') === $s['name']));
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$users = array_values(array_unique(array_filter(array_column($mine, 'user'))));
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$ctr = $ctrOf[$s['name']] ?? '';
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$out[] = [
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'name' => $s['name'],
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'type' => $s['type'],
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'container' => $ctr,
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'sessions' => count($mine),
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'users' => count($users),
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'transcodes'=> count(array_filter($mine, fn($x) => !empty($x['is_tc']))),
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'checked' => time(),
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] + vv_media_server_info($s) + ($stats[$ctr] ?? []);
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}
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return $out;
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}
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// ── The media jobs that had nowhere to be seen ────────────────────────────────────────────────
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// Three scripts that operate on the media files every day and appeared in no tab: play state sync
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// every thirty minutes, permissions and the cleaner nightly. The only way to know whether any of
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